Fix typo in URL.

The go/ link doesn't have an 's' at the end.

Change-Id: Iae22758ebcc448ac8b86c02c735ba9f5a4ca5719
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1506761
Auto-Submit: David Benjamin <davidben@chromium.org>
Reviewed-by: Sorin Jianu <sorin@chromium.org>
Commit-Queue: David Benjamin <davidben@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638650}

components/component_updater/README.md

@@ -37,7 +37,7 @@ out into a dynamically-linked library or data file.
 ### Create a CRX Package Signing Key & Manifest (Non-Google)
 All components are delivered as CRX files (signed ZIP archives). You need to
 create a signing key. If you are a Googler, follow the instructions at
-http://go/newchromecomponents for maximum key security. Otherwise, you can
+http://go/newchromecomponent for maximum key security. Otherwise, you can
 create an RSA key pair using `openssl` or a similar tool.
 
 You will additionally need to create a manifest.json file. If nothing else, the